#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
int main(void)
{
    printf("mycess running...\n");
    //execl("/usr/bin/ls","ls","-a","-l",NULL);
    printf("mycess env:%s\n",getenv("MYCESS"));
    printf("OS env:%s\n",getenv("PATH"));
    return 0;
}
